枢纽偏差与方向工作记忆中的刺激历史偏差相互作用
1Department of Psychology, Arizona State University, 950 S. McAllister Ave., Tempe, AZ, 85287, USA. giyeulbae@asu.edu.
Attention, perception & psychophysics
|March 5, 2024
概括
视觉工作记忆 (WM) 显示了来自刺激类别和历史的偏差. 这项研究表明,先前的刺激和分类轴相互作用,影响新信息的处理方式,影响回忆中的串行偏差.
科学领域:
- 认知心理学 认知心理学
- 神经科学是一个神经科学.
- 计算建模 计算建模
背景情况:
- 视觉工作记忆 (WM) 受到偏差的影响,包括来自刺激类别的枢纽偏差和来自先前刺激的串行偏差.
- 虽然这些偏见得到了充分记录,但它们在WM中的潜在相互作用在很大程度上仍未被探索.
研究的目的:
- 研究视觉工作记忆中枢和序列偏差之间的相互作用.
- 确定枢轴和前面的刺激的相对位置如何影响序列偏差.
主要方法:
- 使用定向延迟估计任务已知可以引起枢纽偏差和串行偏差.
- 操纵了枢軸和前面的刺激相对于目标方向之间的空间关系.
- 进行了随机刺激和响应探头位置的后续实验,以隔离相互作用效应.
主要成果:
- 序列偏差的大小系统地根据枢轴和前一个刺激的相对位置而变化.
- 当枢机和序列偏差在方向上对齐时,观察到一个排斥的序列偏差.
- 当枢机偏差和串行偏差相互对立时,即使在随机定位的情况下,也没有发生串行偏差.
结论:
- 前刺激和枢轴相互作用,影响WM中的新刺激处理.
- 这种相互作用导致序列偏差的差异性模式,取决于特定的刺激环境.
- 这些发现对WM刺激史效应的计算模型有重大影响.
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